Active slice, only for a next boot

[Warner Losh]

On May 27, 2011, at 10:47 AM, rank1seeker at gmail.com wrote:

> ----- Original Message -----
> From: Alexander Best <arundel at freebsd.org>
> To: rank1seeker at gmail.com
> Cc: hackers at freebsd.org
> Date: Fri, 27 May 2011 13:47:54 +0000
> Subject: Re: Active slice, only for a next boot
> 
>> On Fri May 27 11, rank1seeker at gmail.com wrote:
>>> Idea is ...
>>> I have i.e; 3 slices, of which first is active.
>>> Now I wana set slice 2 active, but only for a one/next boot.
>>> Once slice 2 is booted and system is shutdown or rebooted, once again, 
> first slice is active and booted, without user's intervention.
>>> 
>>> Is this possible or should be implemented?
>> 
>> take a look at the gpart(8) manual, expecially the ATTRIBUTES section. if 
> you
>> are running with a GPT scheme you can use the "bootonce" attribute to do
>> exactly what you asked for.
>> 
>> cheers.
>> alex
>> 
> 
> Thanls, but I need it for MBR.

gpart works with MBR.

Warner